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Interactive Information Access to Federations of DL Services

Explore the concept of accessing information in context within federations of Digital Library services, considering time, work, and social dimensions. Learn about interactive retrieval, personalization, and federations of homogeneous and heterogeneous services for efficient access.

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Interactive Information Access to Federations of DL Services

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  1. Interactive Information Access to Federations of DL Services Norbert Fuhr University of Duisburg-Essen Germany fuhr@uni-duisburg.de

  2. 1. From Information Access to Information in Context • Information Access • Considering Context • Time • Work • Social

  3. Text Facts 2D 3D Speech Audio Video Ad-hoc Retrieval Filtering/Routing Classif./Clustering Question Answering Summarization unstructured semi-struct. fully struct. hyperlinked Media/ Objects Structure/ Relationships Access method Information Access Most methods do not consider any context!

  4. Considering Context social context work context time

  5. Time-dependence • Batch retrieval • Constant information needs (Filtering  adaptation) • Interactive retrieval • Personalization: • Preferences • Seen items • Evolving interests

  6. Work context • Context-free • Task-specific searches • Workflow (e.g. DL Life Cycle)

  7. Social context • Single user • (Fixed) user groups • Collaborative information access • (Open) communities

  8. Context dimensions social work communities application workflow teams generic problem solving single users ad-hoc retrieval time interactive retrieval batch retrieval personalization

  9. 2. Federations of services for interactive access • Homogeneous federations • Heterogeneous federations • Interactive access

  10. Federations of Homogeneous Services

  11. Access to federations of heterogeneous services

  12. Federations of Services • Services may specialize with regard to • Content • Users • Usage • Mediating Services

  13. Highly interactive access Fast interaction vs. wide distribution of services

  14. Conclusion • Information access in context: • Time • Work • Social • Federations of heterogeneous DL services • Specialized wrt. content, usage and users • Highly interactive use vs. distributed services

  15. Context in Daffodil www.daffodil.de

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